Intervetional therapy for portal vein occlusion after liver tansplantation / 中华器官移植杂志

Objective +o evaluate percutaneous intervetional therapy for portal vein anastomotic occlusion after liver transplantation.Method From July 2005 to July 2013,13 patients (9 male and 4 female; aged 25-65 years) with portal vein occlsion underwent interventional therapy.All patients accepted the imaging examation and 8 patients had typical clinical signs of portal hypertension.Percutaneous hepatic balloon venoplasty and stent placement was performed,trans-catherter urokinase infusion for thrombolysis and embolization for collateral pathways performed if necessary.+echnical success rate,complication rate and clinical symptoms were analyzed.Follow-ups including clinical course,stent patency and potal vein thrombosis which evaluated by imaging were performed.Result +echnical success was achieved in l1of 13 patients (84.6％) and 15 stents were deployed.Seven patients with localized portal vein occulsion accepted balloon dilation and stents deployment,4 patients with long segment cculsion also accept trans-catherter urokinase infusion for thrombolysis and embolization for collateral pathways.Portal vein flow recovered in all 11 patients.Procedure related complication occurred in 2 patient with hemothorax.During the follow-up period of 4-42 months,the clinical signs of portal hypertension were not observed in all patients.Stent stenosis was found in one patient with ultrasound in 23 months,but stent patency was proved by the percutaneous portal angiography.Conclusion Interventional therapy is effective for portal vein occulsion after liver transplantation,comprehensive interventional therapy should be performed in long segment portal vein cculsion.

A Case of Portal Vein and Splenic Vein Occlusion after Endoscopic Variceal Occlusion Therapy in Gastric Variceal Bleeding / 계명의대학술지

Acute gastric variceal bleeding is one of the most serious complications in portal hypertension, and is associated with high mortality and morbidity. Endoscopic variceal obturation (EVO) using Histoacryl(R) (n-butyl-2-cyanoacrylate) has been accepted as an effective hemostatic procedure in acute gastric variceal bleeding. However, EVO is not a widely performed because of technical difficulties and complications such as mucosal ulceration, perforation, and systemic embolism. Herein, we report a patient who developed hepatic failure caused by portal vein occlusion by Histoacryl(R) injection for management of gastric variceal bleeding.

Noncancerous Right Portal Vein Occlusion: 2 cases / 한국간담췌외과학회지

Portal vein thrombosis is a rare condition occuring in association with a wide varitey of precipitation factors. Among these, advanced hepatoma constitute the major etiology of portal vein thrombosis. Noncancerous intrahepatic portal vein occlusion was reported in some cases of repeated cholangitis. Generally, Intrahepatic stones occures in Lt. lobe of liver and repeated inflammatory precesses occlude peripheral branch of Lt. portal vein. So, noncancerous Rt. portal vein occlusion is extremly rare condition. Two Patients visited our hospital with Rt. upper quadrant abdominal pain and fever. Preoperative abdominal ultrasonography, computerlized tomography, endoscopic retrograde cholagiopancreaticography revealed multiple Rt. intrahepatic stones and Rt. portal vein 1st branch occlusion. Rt. lobectomy of liver were performed. Pathologic reports were portal vein occlusion due to inflammatory thrombi, not tumor thrombi. Thus authors experienced 2 cases of Rt. portal vein 1st branch occlusion due to noncancerous benign condition, such as multiple intrahepatic stones, we report these cases with brief review of literature.

Symptomatic portal vein occlusion: treated by interventional radiological techniques / 介入放射学杂志

Objective To evaluate the efficacy and safety of the interventional radiological techniques for management of symptomatic portal vein (PV) occlusion. Methods Nine patients with PV trunk occlusion were treated using interventional procedures. Four patients presented with abdominal pain, distention, and malabsorption; five presented with portal hypertension and repeated bleeding from esophagogastric varices. The etiologic factors were identified in all 9 patients, including post-transplantation of the liver in 2, hepatocellular carcinoma (HCC) associated with PV tumor thrombus in 3, post abdominal operative state in 1, and PV thrombosis in 3 cases. The portal access was established via a percutaneous transhepatic route in 4, and via a transjugular intrahepatic portosystemic shunt (TIPS) approach in 5 patients. The interventional procedures included stent placement in 4, balloon angioplasty in 6, and catheter directed pharmacologic and mechanical thrombolysis in 7 patients. Results The technical success was achieved in all cases. No complications related to the procedure occurred. Portal flow was reestablished in all patients after the procedures. Clinical improvement was seen in 3 patients with symptomatic PV thrombosis, characterized by progressive reduction of abdominal pain, distention, and diarrhea. Follow-up time ranged from 4 to 36 months. One patient with HCC died of multiple organs metastases at 11 months after the treatment. One patient died of intraabdominal sepsis and multiple organs failure 12 days after the procedure even though the antegrade flow was re-established in the main trunk of the PV. Patency of the PV trunk was confirmed by follow-up color Doppler ultrasound scan in the rest 7 patients, without recurrence of variceal bleeding or PV thrombus. Conclusions Interventional minimally invasive procedures, including balloon angioplasty, stent placement, catheter directed local pharmacologic and mechanical thrombolysis, are safe and effective in the treatment of symptomatic PV trunk occlusion.